485664238289 has 2 divisors, whose sum is σ = 485664238290. Its totient is φ = 485664238288.

The previous prime is 485664238247. The next prime is 485664238291. The reversal of 485664238289 is 982832466584.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 268515694225 + 217148544064 = 518185^2 + 465992^2 .

It is a cyclic number.

It is not a de Polignac number, because 485664238289 - 2¹⁶ = 485664172753 is a prime.

Together with 485664238291, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (485660238289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242832119144 + 242832119145.

It is an arithmetic number, because the mean of its divisors is an integer number (242832119145).

Almost surely, 2^485664238289 is an apocalyptic number.

It is an amenable number.

485664238289 is a deficient number, since it is larger than the sum of its proper divisors (1).

485664238289 is an equidigital number, since it uses as much as digits as its factorization.

485664238289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 159252480, while the sum is 65.

The spelling of 485664238289 in words is "four hundred eighty-five billion, six hundred sixty-four million, two hundred thirty-eight thousand, two hundred eighty-nine".